Heater for oil or gas burners.



W. C. FISCHER. HEATER FOR 0. 0R GAS BURNERS.

APPLICATION FILED JAN..25. I916- Patnted Aug. 28, 1917.

A TIDE/VH8 UNITED STATES PATNT FFIC WILLIAM C. FI-SOHER, OF NEW YORK, N. Y., ASSIGNOR TO THE COMPOUND HEATER MFG. COMPANY, INC., A CORPORATION OF NEW YORK.

HEATER FOR OIL OR GAS BURNERS.

Specification of Letters Patent.

Patented Aug. 28, 1917.

Application filed January 25, 1916. Serial No. 74,083.

To all whom it may concern:

Be it known that I, WILLIAM C. Frsonnn, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented cer tain new and useful Improvements in Heaters for Oil or Gas Burners, of which the following is a specification.

This invention relates to heaters for use with gas, oil or other burners and which has two purposes one, and the principal purpose, being to utilize the heat generated by the oil, gas or other flame to heat a room or apartment and the other being to increase the illuminating power of the flame when the device is used with a source of light as well as heat.

The object of the invention is to simplify and eheapen the cost of heaters of this type and at the same time provide one with tremendous heat-radiating surfaces without making the device bull cumbersome or unsightly.

Another object is to provide simple, inexpensive and efficient means, in a heater for mounting over a gas or other flame, for increasing the light-giving power of the flame.

The invention also consists in the improved construction of heater for gas or oil burners hereinafter more particularly described and then specified in the claims.

In the accompanying drawings, Figure 1 is a central cross-section through a heater constructed in accordance with this invention.

Fig. 2 is a plan view of the same.

Fig. 3 is a plan view of the burner attachment per 86.

Fig. f is a developed plan of the blank from which the attachment shown in Fig. 3 is formed.

Fig. 5 is an edge view and Fig. 6 a front elevation of the end of one of the heatersupporting arms at the end which engages the burner attachment shown in Fig. 3.

The drawings show one of the forms in which the invention may be utilized and in this form a metal heat-radiating plate 1 of any suitable form is employed. Preferably the plate 1 is in the form of a flat dishshaped element supported in inverted position above a gas flame 2, Bunsen burner or other source of heat and by any suitable means or in any desired manner.

3 indicates a dome-shaped disk the outer edge of which rests on the upper surface of the plate 1 and is suitably secured thereto in any desired manner as by rivets 4. The dome-shaped part 3 is centrally located as respects the plate 1 and the plate is provided with a centrally depressed portion 20 of about the diameter of the dome-shaped plate 3, the'center part of the depressed portion being convex at that part disposed centrally over the burner as shown at 21. The dome-shaped part 3 together with the depressed portion 20 of the plate 1 form a closed chamber. If desired the meeting surfaces of the plate 1 and dome 3 may be sealed in any suitable manner to form an air-tight compartment.

In the closed chamber is loosely packed a mass of subdivided metal 5, preferably pieces of scrap iron twisted into any shape. These pieces of metal are practically worthless and give a tremendous area of radiating surface with practically no cost for the ma terial. The mass of metal 5 being confined in the closed chamber and held directly above the gas or other flame rises to a high degree of heat and by providing the large area of radiating surface, great heating effeet is attained. I have found also in practice that the eflicacy of the device is greatly enhanced in making the base of the centrally depressed portion 20 convex as has been described instead of any other form for the reason that when so made the heated air is radiated or refracted downwardly toward the floor by the convex base instead of iipwardly and outwardly. This is a highly desirable feature of the invention, particularly when the heater is fastened to a high gas jet, as will be obvious.

The plate 1 is preferably provided with a coating of white enamel or aorcelain 7 baked hard on its inner surface, that is the surface presented to the light 2 which serves to re fleet the light from the flame and increase its light-giving or illuminating power. If desired the outer surface of the plate as well as the outer surface of the dome-shaped part 3 might be coated with enamel or porcelain.

Preferably the heater is mounted above the gas or other flame by means of a knockdown support comprising a split sleeve 8 to which radiating arms 9 are detachably secured. The sleeve 8 slips Over the periphery of the gas jet or other pipe and being split will conform to variations in diameter of the jet. The sleeve is preferably formed from a blank of sheet metal formed as shown in Fig. ti The body 8 is provided with ears l0 spaced apart and projecting from opposite edges, the ears along one edge being in line with those along the other edge. Each ear is provided with a slot 11. The blank is then bent around into cylindrical form and the ears 10 are bent laterally outward.

The end of each arm 9 is ofiset for a distance somewhat greater than the length of the sleeve 8 and these ends are inserted through the slots 11 in the ears 10, projecting somewhat below the lower car. This projecting end is preferably provided with fingers 12 which are readily turned over and clamp the arms 9 to the sleeve. The other ends of the arms 9 are each provided with a hook or claw 13 which. engages and holds the outer edge of the plate 1.

14 indicates an eye suitably secured to the dome-shaped cap or plate 3 and by which the heater can be suspended over the gas flame by a suitable bracket if desired and so support it instead of by the arms 9.

It will be understood that my invention is not limited to the construction shown and described nor to employing the radiating plate 1 but various modifications and equivalents of the same may be employed without departing from the spirit of the invention as expressed in the appended claims.

What I claim as my invention is 1. In a heater, an inverted dish-shaped l1eat-radiating plate, means for supporting said plate directly above a flame, a dome shaped plate secured to the top of said dishshaped plate and forming with said plate a closed chamber and a mass of separate pieces of scrap metal loosely filling said chamber.

2. In a combined heater and light reflector, an inverted dish-shaped heat-radiating plate,means for supporting said plate above a flame, a closed chamber secured to said plate, a mass of scrap metal in said chamber and a coating of enamel or porcelain forming a light-reflecting surface on the underneath surface of said plate.

3. In a heater, a closed chamber consisting of a convex base, an annular wall extending upwardly and outwardly from said base and a dome-shaped plate secured to said annular wall, a mass of separate twisted pieces of scrap metal loosely packed in said chamher and means for supporting said chamber above a suitable flame with said convex base in substantial vertical alinement with the flame.

4-. In a heater, an inverted dish-shaped plate having a centrally depressed portion provided with a convex base, means for supporting said plate above a flame so that the convex base of said plate is in substantial vertical alinement with the flame, a domeshaped plate secured to the tOp of said. dishshaped plate and forming a closed chamber with the centrally depressed portion of the dish-shaped plate and a mass of separate pieces of metal loosely filling said chamber.

Signed at New York, in the county of New York and State of New York, this 21st day of January, A. D. 1916.

l/VILLIAM C. FISCHER.

lVitnesses F. B. ToWNsnND, REMINGTON Soor'r.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

